DEVICE HOUSING A BATTERY AND CHARGING PAD
First Claim
1. A device housing a battery and charging pad comprising:
- a charging pad provided with a power supply coil; and
a device housing a battery containing an induction coil that magnetically couples with the power supply coil,wherein power transmitted from the power supply coil to the induction coil is used to charge the internal battery contained in the device housing a battery,wherein the device housing a battery comprises;
a rectifying circuit that rectifies AC power induced in the induction coil;
a charging circuit that charges the internal battery contained in the device housing a battery with output from the rectifying circuit;
a shorting circuit that short circuits the terminals of the induction coil; and
a control circuit that controls the shorting circuit ON when a charging abnormality is detected,wherein the control circuit detects a charging abnormality during power transmission from the charging pad power supply coil to the device housing a battery induction coil, and controls the shorting circuit ON to cut-off the supply of power from the induction coil to the rectifying circuit.
1 Assignment
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Accused Products
Abstract
A charging pad 10 is provided with a power supply coil 11, and a device housing a battery 50 containing an induction coil 51. A device housing a battery 50 is provided with a rectifying circuit 53 that rectifies AC power induced in the induction coil 51, a charging circuit 54 that charges the internal battery 52 with output from the rectifying circuit 53, a shorting circuit 56 that short circuits the terminals of the induction coil 51, and a control circuit 57 that controls the shorting circuit 56 ON when a charging abnormality is detected. If the control circuit 57 detects a charging abnormality during power transmission from the charging pad 10 power supply coil 11 to the device housing a battery 50 induction coil 51, it controls the shorting circuit 56 ON to cut-off the supply of power from the induction coil 51 to the rectifying circuit 53.
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Citations
12 Claims
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1. A device housing a battery and charging pad comprising:
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a charging pad provided with a power supply coil; and a device housing a battery containing an induction coil that magnetically couples with the power supply coil, wherein power transmitted from the power supply coil to the induction coil is used to charge the internal battery contained in the device housing a battery, wherein the device housing a battery comprises; a rectifying circuit that rectifies AC power induced in the induction coil; a charging circuit that charges the internal battery contained in the device housing a battery with output from the rectifying circuit; a shorting circuit that short circuits the terminals of the induction coil; and a control circuit that controls the shorting circuit ON when a charging abnormality is detected, wherein the control circuit detects a charging abnormality during power transmission from the charging pad power supply coil to the device housing a battery induction coil, and controls the shorting circuit ON to cut-off the supply of power from the induction coil to the rectifying circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification